Kim Baek-Jin is an anchor, reporter and leader of investigative reporting program “Argon.” He does not tolerate mistakes and relies only on facts.

Meanwhile, Lee Yeon-Hwa is a contract reporter. 3 months before her contract is to end, she is assigned to work at “Argon.” She struggles to get a permanent job there as a reporter. Working with Kim Baek-Jin, she receives strict training and grows as a reporter.